01
China SRF Kitchen Specific Centrifugal Fan - Low Noise, Vibration Rate | Trusted Suppliers & Factory
Parameters
← Scroll horizontally to view full table →
| Model | Speed (r/min) |
Power (kW-P) |
Traffic (m³/h) |
Total Pressure (Pa) |
Voltage (V) |
Frequency (Hz) |
Horsepower (HP) |
|---|---|---|---|---|---|---|---|
| 2.8A | 1450 | 1.1-4 | 2680-4770 | 580-430 | 220/380 | 50 | 1.5 |
| 3A | 1450 | 1.5-4 | 3267-5544 | 600-450 | 220/380 | 50 | 2 |
| 2.2-4 | 3850-6780 | 712-590 | 220/380 | 50 | 3 | ||
| 3.2A | 1450 | 2.2-4 | 3960-6039 | 630-500 | 220/380 | 50 | 3 |
| 960 | 1.1-6 | 2772-5148 | 380-350 | 380 | 50 | 1.5 | |
| 3.5A | 1450 | 3-4 | 5050-7810 | 1000-820 | 220/380 | 50 | 4 |
| 1450 | 4-4 | 5560-8217 | 1200-840 | 380 | 50 | 5.5 | |
| 960 | 1.5-6 | 3180-5645 | 450-400 | 380 | 50 | 2 | |
| 4A | 1450 | 5.5-4 | 7030-11680 | 1280-990 | 380 | 50 | 7.5 |
| 960 | 2.2-6 | 5158-7980 | 620-512 | 380 | 50 | 3 | |
| 960 | 3-6 | 5677-8345 | 650-520 | 380 | 50 | 4 | |
| 4.5A | 1450 | 7.5-4 | 7940-14200 | 1470-1180 | 380 | 50 | 10 |
| 960 | 4-6 | 7420-12350 | 810-720 | 380 | 50 | 5.5 | |
| 5A | 960 | 5.5-6 | 11920-17880 | 970-750 | 380 | 50 | 7.5 |
| 7.5-6 | 13405-18110 | 1100-840 | 380 | 50 | 10 | ||
| 6A | 960 | 7.5-6 | 12890-19890 | 1150-980 | 380 | 50 | 10 |
Frequently Asked Questions
1
What do the model numbers (e.g., 2.8A, 3A, 4A) represent in the parameter table?
The model numbers refer to the fan's impeller diameter size category. A larger model number generally indicates a larger fan wheel diameter, which corresponds to higher airflow (traffic) capacity and greater total pressure output. Each model may also be available in multiple speed and power configurations to suit different application requirements.
2
What is the difference between 4-pole (1450 r/min) and 6-pole (960 r/min) motor configurations?
The number of poles determines the motor's synchronous speed. A 4-pole motor runs at approximately 1450 r/min and delivers higher airflow and total pressure, making it suitable for applications requiring stronger ventilation performance. A 6-pole motor runs at approximately 960 r/min, offering quieter, more energy-efficient operation with lower noise levels, ideal for environments where noise reduction is a priority.
3
Which voltage options are available, and how do I choose the right one?
Smaller models (2.8A to 3.5A) are available in both 220V and 380V configurations, while larger models (4A and above) operate on 380V only. The correct voltage should match your facility's power supply standard. All models operate at 50 Hz frequency, which is the standard in most countries outside North America. Please consult a qualified electrician to confirm your local power supply specifications before installation.
4
How do I select the correct power (kW) and horsepower (HP) rating for my application?
The power rating should be selected based on your required airflow (m³/h) and total pressure (Pa). Higher resistance systems — such as those with long ductwork, multiple bends, or filters — require higher total pressure and therefore higher power. As a general rule, choose a motor with sufficient power to handle peak load conditions without overheating. The horsepower (HP) rating is simply the imperial equivalent of the kW value for reference.
5
What does the "Traffic" (m³/h) range indicate, and how should I interpret the minimum and maximum values?
The traffic range represents the volume of air the fan can move per hour under varying static pressure conditions. The lower end of the range corresponds to operation at higher resistance (higher total pressure), while the upper end reflects performance at lower resistance. When sizing a fan for your system, calculate the actual system resistance and select a model whose operating point falls within the listed traffic and total pressure range for optimal efficiency.
6
Can the same model number be configured with different power ratings and speeds?
Yes. As shown in the parameter table, several models — such as 3A, 3.2A, 3.5A, 4A, 4.5A, and 5A — are available in multiple speed and power combinations. This flexibility allows you to choose the configuration that best balances airflow performance, energy consumption, and noise level for your specific installation environment.